Portable drilling rig



Jan. 7, 1936. Y y l G1 H, GILMAN 2,026,627

PORTABLE DRILLING RIG ATTORNEY Jan. 7, 1936. G. H. GILMAN v 2,026,627 lPORTABLE DRILLING RIG Filed sept. s, 1953 s sheets-sheet 2 G;H.G|LMAN.

IN VENT OR 'n -AORNEY 5 Sheets-Shest I5 INVENTOR A ORNEY PORTABLEDRILLING RIG Filed Sept. 8, 1933 Patented Jan. 7, 1936 i UNITED STATESPATENT OFFICE PORTABLE DRILLING RIG George H. Gilman, Newark, N. J.,assignor to Worthington Pump and Machinery Corporation, New York, N. Y.,a corporation of Virginia Application September 8, 1933, Serial No.688,554

4 Claims.

` movable over the mucking track of a tunnel for bringing the drills tothe surface to be' drilled, which rig is so designed that a plurality ofpercussive tools, such as rock drills, may be carried thereby andadjusted into a pluralityof drilling f positions with a minimum amountof labor and in a short time, thereby eliminating the taking down andsetting up of the tool supporting rig and materially reducing the costof the drilling operation in the cutting of a tunnel.

Another object of this invention is to provide a drilling rig asspecified which includes pivotally supported drill carrying arms whicharms may be easily and rapidly swung into and out of position tofacilitate movement of the rig in a tunnel and provide clearance for themucking truck.

features forming the inventionwill be specifically pointed out in theclaims.

In the drawings:

Fig. 1 is a side elevation of the improved portable drilling rig.

Fig. 2 is an end elevation of the improved port- 'able drilling rig.

Fig. 3 is a top plan of the improved portable drilling rig.

Referring more particularly to the drawings, the improved portabledrilling rig comprises a carriage I, which is supported upon trucks 2.'I'he trucks 2 may be of any approved type and they are of such gauge asto be operable over a mucking track 3 which is ordinarily built in atunnel as it is being cut, to facilitate the removal of the materialremoved from the surface thru which the tunnel is being cut.

Ihe carriage I comprises a main platform 4, and a super-structuresupported thereon. The super-structure 5 comprises platforms 6 and 1,which as clearly shown in Fig. 2 of the drawings, project laterallybeyond the sides of the superstructure 5, and form platforms on whichthe various operators of the percussive or pneumatic tools may stand,during the drilling operation.

(Cl. Z55-51) The platforms 4, 6 and 'l also form supports for carryingdrill steels, or drill bars as indicated at 8, so that a supply ofsharpened drill bars may always be conveniently at hand for use when itis necessary to change the drill bars in the various tools. 1,

' The carriage structure 4I has a plurality of vertical standards I0,rigidly connected thereto v and supported by suitable brackets II. Thestandards Ill are round and have upper and lower arms I2 and I3respectively, pivotally connected thereto as clearly shown in Figs. 1and 3 of the drawings.

Tool supporting bars I4, are carried by the outer ends of the arms I2and I3. The tool carrying bars I4 are detachably attached to the pivotedor swingable arms I2 and I3 in any suitable manner such as by means ofthe clamp structures I5, so that the tool carrying bars I4 may bedisconnected from the swingable arms I2 and I3 when it is desired, andalso they may be adjusted perpendicularly to the swingable arms ifdesired.

As'clearly shown in Figs. 1 and 2 of the drawings, the tool carryingbars I4 project perpendicularly to the swingable arm I2 and extend aboveand below the carriage structure I. l

Horizontally adjustable tool supporting bars I1 are connected to thevertical bars YI4 by means of suitable clamp structures I8. These clampstructures I8 are of any approved construction Vand are so designed asto permit the bars II to be adjusted vertically and horizontally withrespect to the vertical bars I4. The clamp structures I8 are also soconstructed as to permit the horizontal bars I1 to be swung about orrotated on axes both parallel and perpendicular to the axes of thevertical bars I4, so as to permit the varying of the angle ofinclination of the tool supporting guides both in vertical andhorizontal planes. The tool supporting guides 20 may be of any approvedtype and are connected to the horizontal bars I1 by suitable clamp andtrunnion structures 2|.

Percussive or pneumatic tools 22 of any approved type are mounted uponthe supporting guides 20 in the usual manner so as to position the drillbars 23 in the proper and desired position for drilling into the faceindicated at A, of the material thru which the tunnel is being driven.

Crank tool-supporting arms 24 are connected to the lower end of thevertical bars I4 by clamps 25 which are similar in every respect to theclamps I8. Cranks horizontally adjustable to the supporting bars 24 areprovided to permit a greater scope of adjustment of the percussive toolscarried thereby to permit the drilling of the lowermost part of thetunnel, as clearly shown in Figs. 1 and 2 of the drawings. The toolcarriages 26 which are similar to or identical with the supportingcarriages 20, are connected to the outer crank ends `of the horizontallyadjustable crank bars 24 by suitable clamp structures 28, and trunnions29, while percussive tools S of any approved type are carried by thesupporting guides 26. By rotating the crank bars 24 a greater scope ofadjustability is provided for the percussive tools 3B, carried by thecrank supporting bars. The bars 2li are adjustable transversely of thebars I4 and thru. the medium of the clamps 25 are adjustable in a rotarymanner about axes both parallel to and perpendicular to the axes of thebars I4. When the drilling rig is not in use, the swingable arms I2 andI3 may be swung in` wardly into the position shown in Fig. 3 of theYdrawings, to permit the portable drilling rig to be withdrawn from theface A of the tunnel and side-tracked to permit the mucking cars (notshown) to be moved forward for the purpose of removing the materialwhich has been cut from the face A.v When it is desired to drill, thearms I2 and I3 may be swung outwardly to position various percussivetools or rock drills 22, etc.,

into their proper drilling position, and as indicated or shown in Figs.1 and 2 of the drawings.

From the foregoing description taken in connection with the accompanyingdrawings it will be apparent Athat a portable drilling rig has beenprovided which is comparatively simple in construction, and which willpermit maximum adjustment of position of the various percussive orpneumatic drills carried thereby, with a minimum amount of manual labor,and in a minimum amount of time; that the improved portable drilling rigwill very materially decrease the labor required in the drillingoperations of a tunnel, and that when a single drilling operation hasbeen completed, the tool carrying parts of the carriage may be swunginwardly out of the way to occupy a minimum amount of space in thetunnel so as to enable the drilling rig to be sidetracked and notinterfere with' the mucking operation of tunneling.

It will be understoodv that the invention is not to be limited to thespecific construction or arrangement of parts shown, but that they maybe widely modified within the invention as dened by the claims.

What is claimed is:

l. In a portable drilling rig, a wheeled carriage, standards rigidlyattached to said carriage at one end thereof, arms arranged in verticalpairs and adjustably carried by said standards, said armsY swingable inhorizontal planes, a vertical tool caru) rying bar adjustably carried byeach pair of said arms, and horizontal tool carrying bars adjustablycarried by said vertical tool carrying bars.

2. In a portable drilling rig, a wheeled carriage, standards rigidlyattached to said carriage at one 1,-, end thereof, arms arranged invertical pairs and adjustably carried by said standards, said armsswingable in horizontal planes, a vertical tool carrying bar adjustablycarried by each pair of said arms, and horizontal tool carrying bars ad-2.5) justably carried by said vertical tool carrying bars, certain ofsaid horizontal tool carrying bars being crank shaped.

3. In a portable drilling rig, a wheeled carriage, super-posed platformscarried by said carriage, ig, standards rigidly attached to saidcarriage at one end thereof outwardly of the ends of said platforms,arms arranged in vertical pairs and adjustably carried by saidstandards, said arms swingable in horizontal planes, a vertical tool 3carrying bar adjustably carried by each pair of said arms, andhorizontal tool carrying bars adjustably carried by said vertical toolcarrying bars.

4. In aportable drilling rig, a wheeled carriage, super-posed platformscarried by said carriage, standards rigidly attached to said'carriage atone end thereof outwardly of the ends of said platforms, arms arrangedin Vertical pairs and adjustably carried byv said standards, said arms40 swingable in-horizontal planes, a Vertical tool carrying baradjustably carried by each pair of said arms, and horizontal toolcarrying bars adjustably carried by said vertical tool carrying bars,said horizontal tool carrying bars being positioned some above the levelof the topmost portion of 4said carriage and others being positionedbelow the lowermost portion of said carriage.

GEORGE H. GILMAN.

